Nut lock



- Jan. 31, 1928. 1,657,949

D. WILSON NUT LOCK Filed Jan. 1- 1926 Patented Jan. 31, 1923.

Nrreo STATES DAVID WILSON, OF SPOKANE, WASHINGTON.

NUT LOCK.

Application filed January 12, 1926.

The invention relates to new and useful improvements in nut-locks and more particularly to a nut-lock which is separate from the nut and which is adapted to engage the nut-after it has been turned to clan'iping position, for preventing; the nut from turning. i

An object of the invention is to provide a nut-lock which includes a body portion having means for engaging the material being'elainped, and also means for engaging the nut and preventing the nut from turning, which. body portion is of much larger dimensions than the nut and has a continuous peripheral edge, thus providing an enlarged bearing surface for the nut'loclr, whereby the nut-lock is much less liable to become embedded in the material against which it is clamped.

In the drawings which show by way of illustration one embodiment of the invention, Figure 1 is a perspective view showing my improved nut-lock as applied to a bolt and nut and turnm Fig. 2 is positioned for holding the nut from a sectional view on line 2-2 of Fig.3is a sectional view on line 3-3 of Fig. 1, but with only one of the clamping lugs for the nut turned up against the side of the nut and with the other clamping, lug in its normal position.

Fig. .lis a plan view of the nut-lock with the nut indicated in broken lines.

My improved nut-lock consists of a body portion which. has a continuous unbroken peripheral edge. This body portion is of considerably greater dimensions than the nut. iVhen said nut-lock is used for looking a squared nut, there are two projections extending substantially at right angles to the body portion of the nut-lock which are forced into the material for holdingth'e nutlock fromturning, and there are two lugs located in a line at right angles to the line joining the holding projections which are adapted to be turned up against the slde of the nut for locking the nut from turning.

These holding projections for preventing.

the nut-lock from turning are out from the body portion of the nut-lock back from the.

peripheral edge, andof course are so disposed as to be underneath theunut 111 all pos1- tions of the nut as it is turned, so that the force of the nut is directly over the projec- Serial N0. 80,734.

lions for forcing the same into the material which is to be clamped by the nut.

The holding projections for preventing the nut from turning are also cut from the body portion back from the peripheral edge thereof, and these holding portions are nornally raised slightly so that an instrument may be readily inserted beneath the same for raising it into position for holding the nut after the locking washer has been clamped against the material, and the nut turned to a position for locking.

Referring more in detail to the drawings, my improve-d nut-lock consists of a body portion 1 which, as shown in the drawings, is circular. It is understood of course that it may be otherwise shaped, but it is desirable that the peripheral edge 2 of the nut-lock shall be continuous.

The nut-lock is provided with projections 3-3 as shown in the drawings. These pro jections are cut from the body portion of the nut-lock and are preferably tapered to a point so that they may be readily embedded in the wood or other material which is clamped by the bolt and nut.

The projection 3 is cut from the body portion some distance back from the peripheral edge thereof, and said projection is located underneath the nut in all positions of the nut during turning, so that the force of the nut will press the projection into the material, and thus firmly hold the body portion of the nut-loek from turning.

The nut-lock, as shown in the drawings, is constructed to hold a square nut 4 threaded onto a bolt 5. The material clamped by the bolt and nut is indicated at 6 and is wood, or any suitable metal which is capable of hav :ing the projections 3 embedded therein. If the nut-lock is used in conjunction with ma terials which cannot be penetrated by the projections 33, then, of course, recesses would have to be provided. These projections serve to hold the body portion of the nut-lock from rotation relative to the ma terial which is clamped by the nut.

The body portion of the nut-lock is pro vided with holding lugs 7-7. These holding lugs are cut from the bot y portion back from the peripheral edge thereof. After the material has been cut to form the projections 7+7 the projections are slightly raised at theonter edges thereof, as shown at the left in ,3, so that the extreme outer edge of ill) across the end of the lug will serve a luls cruin for the instrument, so that the lug may be readily pried up. This portion oi? the washer will also protect the material heneath the washer from being broken or (hnnaged by the instrument when it used to raise the'lug.

As noted, there are two projections 7T, and in connection with a square out these projections are preferably disposed in a line which is at right angles to a line containing the projections 33. it will be understood of course, that it the nut has more than four sides, the holding projections for the nutloek and the holding lugs for the nut may be otherwise disposed. It is essential, however, that the looking lugs for the nut shall be so positioned as to engage a side face of the not. It Will also be noted fronithe drawing that the looking lugs have their inner portions extending to a line beneath the side face of the not when the nut is in set position for loel mg, and thus it is that the locking lug may he turned flat against the sidetae'e of the nutinaking slihstantial engagement therewith throughout its entire turned portion. By this close fitting Oi the leg to the side face of the nnt when in set position for looking the hat, the lag is not liable to he turned down through the strain of the nut thereag'ainst. Practically the only thing that will perniit the nut to turn would be the sh'eering oil of the upturned portion. It will be apparent from the drawings that the body portion of the n'ut loek is of considerably greater dimensions than the nut, so that said nut-look projects some distance beyond the side edges of the nut; This proyides a ranch enlarged bearing surface for thelnut-lock. The nut-look therefore perforinswhat inight he called a double tunetion; that is, the function jot a washer, and also the tunetion of a ntitsloelz.

Y When clamping material made of wood or the like, itis very essential that a clamping washer be used in order to preventthe nut from turning into the material or breaking the surface of the inaterialso that water may enter and thus cause the inaterial to rot. By the use, of my iinproyed washer and nut-lock the tnrningl'of the not so as to" damp the material does not in any way out theliiiate rial", 1'01? roles: the natdoeh into the material, l" t the washer nntdool; is clamped fiat inst the side "face o f the material without breaking the same. This, as above noted, preyents water getting into the material, causing rot, and thus it is that the ellieieney ot' the washer nutlock is greatly increased. 'llhis washer 1]lll', -l(, l(fl{ lll2l 'w' he made ol a noncor-roam;- inaieriiil which will Further aid in the protection ot the wood under the washer -lroin corrosion rust and oxidizaiion, whereas without this protection the wood would become weakened much sooner at the already weakened bolt hole. It will he noted from the above that l have provided a combined washer and nut-loch. The body portion oi this combined washer and lllll-lOl' i may he of flexible sheet metal ol smiii ient thicl-zne s to give the necessary tensile strength. and at the some time produce a rigid nut-loch and an effective bridge washer irom this mi npieee of metal. The conlhimal washer and nnt-loek can be stamped by a single strobe ol' the punch cooperating with asuitahle die at a yery ininin'unn cost 011? labor and prodnction.

It is obvious thatininor (changes in the details of construction and arrangement 01 parts may be llllltlO without departing from the spirit oi the invention as set forth in the appended clailn.

l i hat I claim new and desire to seizure by Letters Patent is A. nutloek eoniprising a body portion hay ing aeontinuous peripheral edge, said body portion being of considerably larger (lllllOIlsions than the nut wth which it is to he used and having the peripheral edges thereof unbroken, whereby said body portion of the nut-leek serves the function of a wmher, said body portion having portions cut therefrom back from the peripheral edge, which portions are turned at substantially right angles to the plane of the body portion l'or holding the nut-lock itroin turnin said body portion also having locking; lugs eat therefrom back :troni the peripheral edge which are adapted to be turned up against the are of the out for holding the nut 'l'rom turning, said last-nan1ed lugs haying their inner portions extending to a linebenealh the side face of the nut when said not is in set position For locking, with the inner :uljacent portions of the hints over which the corn rs ol the not pass during the llu'nlzryg or the not normally siihstantially Flush with the body portioin and the outer end portions thereof normally raised to a point slio'hllynboyr the outer face of the body portion of the not look, whereby a sui'tz'rb'le instrlnnent may he i'orc'ed beneath the holding; lugs for turning the same against the side Face of the not said peripheral portion at the ends of the lugs seryi ng 'as a :tulerinn for the instrument and to protect the material being elainped during the raising of the lug.

I in testimony whereof, l have allixed my si gnat u re.

DAVID YVTLSUN. 

